Roselle seeds, a waste biomass of the roselle calyx processing industry, were utilized to recover valuable compounds of oil, vitamin E, and water-soluble saccharides. Firstly, ultrasound-assisted extraction (UAE) and conventional stirring extraction were conducted for saccharide extraction, and the advantage of UAE was confirmed. Secondly, oil, vitamin E, and saccharides extracted from Vietnamese roselle seeds by UAE were analyzed for the first time. Oil of tri-, di-, and mono-glycerides, fatty acids of linoleic-, oleic-, palmitic-, and stearic-acids, vitamin E of γ- and α-tocopherol, and saccharides of sucrose, raffinose, stachyose, etc. were identified, and the amounts of these components were compared with those in other country's roselle seeds. Thirdly, cascade extraction of oil, vitamin E, and saccharides by UAE was investigated with solvents of hexane, hexane:ethyl acetate binary solvent, and water. The results indicated that the order of using solvents was very important for high and selective extraction: the best order to recover oil (almost 100%), vitamin E (95.7%), and saccharides (86.2%) was hexane, and then water.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.2116/analsci.20P073 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Dementia Care Research and Psychosocial Factors.
Alzheimers Dement
December 2024
University of Georgia, College of Pharmacy, Athens, GA, USA.
Background: Lipids are key modulators in the pathogenesis of Alzheimer's disease (AD). Dysregulation of lipid homeostasis may disrupt the blood brain barrier, alter myelination, disturb cellular signaling and cause abnormal processing of the amyloid precursor protein. The purpose of this scoping review was to evaluate fatty acid supplementation in patients with AD.
View Article and Find Full Text PDFVitamin D and exercise improve VEGF-B production and IGF-1 levels in diabetic rats: insights the role of miR-1 suppression.
Sci Rep
January 2025
Department of Biology, Faculty of Science, Razi University, Kermanshah, Iran.
Background: Type 2 Diabetes Mellitus (T2DM) is closely associated with the development of vascular damage in the heart. In this study, the researchers aimed to determine whether Aerobic Training (AT) and Vitamin D supplementation (Vit D) could alleviate heart complications and vascular damage caused by diabetes. The effects of an eight-week AT program and Vit D on the expression of miR-1, IGF-1 genes, and VEGF-B in the cardiomyocytes of rats with T2DM.
View Article and Find Full Text PDFLipophilic antioxidants in edible oils: Mechanisms, applications and interactions.
Food Res Int
January 2025
State Key Laboratory of Food Science and Resources, School of Food Science and Technology, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, People's Republic of China. Electronic address:
Essential fatty acids (EFAs) in edible oils are crucial for human nutrition. However, their high unsaturation renders edible oils susceptible to oxidation during storage and processing. The addition of lipophilic antioxidants is an effective strategy to inhibit oxidation and safeguard the nutritional integrity of edible oils.
View Article and Find Full Text PDFSynthesis of piceid lipoate and the effect and micro-mechanism of alpha-lipoic acid moiety on its antioxidant activity.
Food Res Int
January 2025
Jiangxi Key Laboratory of Natural Product and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China. Electronic address:
A lipophilic piceid lipoate (PIL) was synthesized by enzymatic method to enhance the antioxidant activity of piceid and improve its state in oil system. The highest substrate conversion of 93.71 % was obtained in γ-valerolactone using Novozym 435 as a catalyst, with a piceid/lipoic acid ratio of 1:15 (mM/mM), an enzyme dosage of 40 mg/mL, and 4 Å molecular sieves at 400 mg/mL.
View Article and Find Full Text PDFThe use of green technologies for processing lupin seeds (Lupinus angustifolius L.): Extraction of non-polar and polar compounds for concentrated-protein flour production.
Food Res Int
January 2025
Research Group for Bioactives-Analysis and Application, National Food Institute, Technical University of Denmark, Lyngby, Denmark. Electronic address:
This study aimed to promote the valorization of lupin seeds by extracting both non-polar and polar fractions to produce a protein-rich flour suitable for food applications. Green extraction methods such as Supercritical Fluid Extraction (SFE) and SFE followed by gas-expanded liquid extraction with ethanol/CO mixtures were employed. SFE yielded lupin oil with extraction yields ranging from 2.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!